From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-qt1-f202.google.com (mail-qt1-f202.google.com [209.85.160.202]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DE234331A6E for ; Tue, 19 May 2026 11:43:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.160.202 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779191039; cv=none; b=gszAQ3iVHSdks5oiATg2h1VvX34uSRHI+wDbmUY6UrwsdHJdN6wRnaAM7W48uUvRzGGwao9R4hDHvcBOGwos/Uy3SAvheA+hF4OVDP+r2Kbh9qXPUSU9xobBQcuUgqRKsQYjhRVGb9Y5INjznGxmPczwYXi3BjfCa/ZteV/f9Fo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779191039; c=relaxed/simple; bh=j0n2i1qqb7QEx6yBlpknzaa36RFp90V6VCOjjqk1Ils=; h=Date:Mime-Version:Message-ID:Subject:From:To:Cc:Content-Type; b=EsHtqP1UMtZyimy+0yzSp8ZK+DnywrXuu855g9Z1Iko5f2qZtAVmfN8/a7T4LlbbmYMFmS3ionA/G1MaEOURN+9cMVammzAK4QHh8KZYZKRG6qt19YL0ggfoEQNzpNsLx/EtxCCqEw+9zAZPvl50tXkjFWzLLWLlJ2CLTiWz6tQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--edumazet.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=nCRDMiUG; arc=none smtp.client-ip=209.85.160.202 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--edumazet.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="nCRDMiUG" Received: by mail-qt1-f202.google.com with SMTP id d75a77b69052e-514d2b22e7fso18579141cf.0 for ; Tue, 19 May 2026 04:43:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20251104; t=1779191037; x=1779795837; darn=vger.kernel.org; h=cc:to:from:subject:message-id:mime-version:date:from:to:cc:subject :date:message-id:reply-to; bh=0VV0Co+RmezWRKvG4qKGgjPEjU48Ujf0A5MCPMGpp0g=; b=nCRDMiUGhYDrjsKwD9W2DrSgBGueUKJkwV/qTT75ztyCZFBbUzw6gbksDeN3aJE6Ye +GFPQuntre9I56xwFsdauxDym65uSasn9iKRIaUadATME2u750OUidU4ezfEFxHtbRGl BOOaSEqO2n41LdbZNNORWtBNSbchfpHYglZxHhyERAy+3MgXURzXpeTV8A9GrQmnJYv+ t2R+jFQ0SpQddB1YqM7AfbBCuLTMwsaMQU7r1hNqhKchOgV567rFJHKGZWK/YHMfVsce PQlrtWHLBmdMOCsowBCmfvzDFxmO+VtohQIvw3MV4IVtISqqZ/tRFEybV+wJ6xp/OePG L6Dg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1779191037; x=1779795837; h=cc:to:from:subject:message-id:mime-version:date:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=0VV0Co+RmezWRKvG4qKGgjPEjU48Ujf0A5MCPMGpp0g=; b=ej722MGYIHfpl8b3Jpt6CWqJhG4tVUCrVamjATOAHMhbH4AZIahbskVzxk0NgOO8Ot Hl+PMPP2p2n9xlvqfPwY+JbdAf9qm7RewAKgKtG58rotlnwRkckyQ5fU+1Pc//owvjVy IEion0zmDu20H5KTCOa/nDh0nwlTrpvfLAiWO+Fr2qTIWuN14MaxCGTZcjW3kbMAaJC/ bpDCOuexwtY7rVMWSmY/3fASEkyNCJovEwikWbXrzaOXdoAgQcz9upUI3jR45YQvbfeP Xwwr8VcJSY1/YmwU0xv5At2UofHuYonbT7HZq+GaTie98LKH+cNfbV8NPkEh42Quya/Q wgnA== X-Forwarded-Encrypted: i=1; AFNElJ8JT/nkqS2xQpc1LMWkLS75iDN5sq/ALzfcTqzR6TwS8JI2laB2XSGauFuYenrQ+vWypZNG/Gc=@vger.kernel.org X-Gm-Message-State: AOJu0YysE0Go4elbOIh/wBlBUVOLNxaibLB1tYPt5AiR+yCK7KsLpL4u jaA2bHoZguzjTWblMOVP1YM17QpS2ncdmovPO6GJBVDtdfdI+VOK2NvHktXCFcT2iqI1YU6oq7B HcJ91JvXH8rOJTw== X-Received: from qtny14.prod.google.com ([2002:ac8:524e:0:b0:50f:d9ae:6d00]) (user=edumazet job=prod-delivery.src-stubby-dispatcher) by 2002:a05:622a:6a92:b0:50e:5ffd:deb9 with SMTP id d75a77b69052e-5165a27681fmr185686131cf.31.1779191036618; Tue, 19 May 2026 04:43:56 -0700 (PDT) Date: Tue, 19 May 2026 11:43:53 +0000 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 X-Mailer: git-send-email 2.54.0.563.g4f69b47b94-goog Message-ID: <20260519114355.2769474-1-edumazet@google.com> Subject: [PATCH v2 net-next 0/2] rtnetlink: RTNL avoidance in rtnl_getlink() From: Eric Dumazet To: "David S . Miller" , Jakub Kicinski , Paolo Abeni Cc: Simon Horman , Kuniyuki Iwashima , netdev@vger.kernel.org, eric.dumazet@gmail.com, Eric Dumazet Content-Type: text/plain; charset="UTF-8" Many shell scripts invoke iproute2 commands specifying a device by its name. This series improves their performance avoiding RTNL acquisition for their (repeated) name->index conversion. Eric Dumazet (2): rtnetlink: use nla_nest_end_safe() in rtnl_fill_prop_list() rtnetlink: do not acquire RTNL for RTM_GETLINK with RTEXT_FILTER_NAME_ONLY net/core/rtnetlink.c | 76 ++++++++++++++++++++++++++++++++------------ 1 file changed, 55 insertions(+), 21 deletions(-) -- 2.54.0.563.g4f69b47b94-goog